Exploració per tema "Graphene"

Ara es mostren els items 1-20 de 153

    • 3Cat-1 project: a multi-payload CubeSat for scientific experiments and technology demonstrators 

      Jové Casulleras, Roger; Araguz López, Carles; Via Ortega, Pol; Solanellas Bofarull, Arnau; Amézaga Sarries, Adrià; Vidal Mateu, David; Muñoz Martin, Joan Francesc; Marí Barceló, Marc; Olivé Muñiz, Roger; Sáez Hernández, Alberto; Jané Abad, Jaume; Bou Balust, Elisenda; Iannazzo Soteras, Mario Enrique; Gorreta Mariné, Sergio; Ortega Villasclaras, Pablo Rafael; Pons Nin, Joan; Domínguez Pumar, Manuel; Alarcón Cot, Eduardo José; Ramos Castro, Juan José; Camps Carmona, Adriano José (2017)
      Article
      Accés obert
      This article introduces 3 Cat-1, the first project of the Technical University of Catalonia to build and launch a nano-satellite. Its main scope is to develop, construct, assemble, test and launch into a low Earth orbit a ...

    • A graphene based plasmonic antenna design for communication in the THz regime 

      Suessmeier, Christoph; Schaeffer, Stephan; Abadal Cavallé, Sergi; Alarcón Cot, Eduardo José; Hosseininejad, Seyed Ehsan; Wigger, Anna K.; Stock, Daniel; Wagner, Stefan; Cabellos Aparicio, Alberto; Lemme, Max; Bolívar, Peter Haring (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      We show the first THz emission of a graphene based plasmonic antenna structure. Furthermore we present the minimum material requirements for an operational graphene antenna in terms of chemical potential µc and relaxation time t.

    • A novel graphene nanoribbon XOR gate design 

      Rallis, Konstantinos; Sirakoulis, Georgios Ch.; Karafyllidis, Ioannis; Rubio Sola, Jose Antonio; Dimitrakis, Panagiotis (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Graphene is a 2D material with spectacular properties. Its elasticity and biocompatibility make it appropriate for stretchable electronics and bioelectronics applications respectfully. In this work, we present the design ...

    • A reprogrammable graphene nanoribbon-based logic gate 

      Rallis, Konstantinos; Fyrigos, Iosif-Angelos; Dimitrakis, Panagiotis; Dimitrakopoulos, George N.; Karafyllidis, Ioannis; Rubio Sola, Jose Antonio; Sirakoulis, Georgios Ch. (2023)
      Article
      Accés obert
      In this article, taking into consideration the exceptional technological properties of a unique 2-D material, namely Graphene, we are envisioning its usage as the structure material of a non-back-gated re-programmable ...

    • Adhesion and friction control localized folding in supported graphene 

      Zhang, Kuan; Arroyo Balaguer, Marino (American Institute of Physics (AIP), 2013-05)
      Article
      Accés restringit per política de l'editorial
      Graphene deposited on planar surfaces often exhibits sharp and localized folds delimiting seemingly planar regions, as a result of compressive stresses transmitted by the substrate. Such folds alter the electronic and ...

    • An atomistic-based foliation model for multilayer graphene materials and nanotubes 

      Ghosh, Susanta; Arroyo Balaguer, Marino (2013-01)
      Article
      Accés obert
      We present a three-dimensional continuum model for layered crystalline materials made out of weakly interacting two-dimensional crystalline sheets. We specialize the model to multilayer graphene materials, including ...

    • Analysis of a plasmonic graphene antenna for microelectronic applications 

      Suessrneier, C.; Thiel, F.; Wigger, Anna K.; Bolívar, Peter Haring; Abadal Cavallé, Sergi; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto; Banszcrus, L.; Stampfer, C.; Lemme, M. (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Graphene offers a large potential to downscale antennas to the micrometer scale, due to its special dispersion relation and its ability to support plasmons in the THz frequency range. For an adequate performance of the ...

    • Análisis estructural de óxidos de grafeno (GO) y óxidos de grafeno reducidos (rGO) 

      Colom Fajula, Xavier; Cañavate Ávila, Francisco Javier; Lis Arias, Manuel José; Sanjuan, Gemma; Gil Galí, Ignacio (2020-07-01)
      Article
      Accés obert
      El artículo caracteriza a nivel estructural, morfológico y térmico tres muestras distintas de óxido de grafeno comerciales (AGO, EGO y CGO) obtenidas mediante el método Hummers, las cuales han sido posteriormente reducidas ...

    • Application of graphene-based materials 

      Antunes, Marcelo de Sousa Pais (2023-10-12)
      Article
      Accés obert

    • Area and laser power scalability analysis in photonic networks-on-chip 

      Abadal Cavallé, Sergi; Cabellos Aparicio, Alberto; Lázaro Villa, José Antonio; Nemirovsky, Mario; Alarcón Cot, Eduardo José; Solé Pareta, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In the last decade, the field of microprocessor architecture has seen the rise of multicore processors, which consist of the interconnection of a set of independent processing units or cores in the same chip. As the number ...

    • Boosting moisture induced electricity generation from graphene oxide through engineering oxygen-based functional groups 

      Zhu, Renbo; Zhu, Yanzhe; Chen, Fandi; Patterson, Robert; Zhou, Yingze; Wan, Tao; Hu, Long; Wu, Tom; Joshi, Rakesh; Li, Mengyao; Cazorla Silva, Claudio; Lu, Yuerui; Han, Zhaojun; Chu, Dewei (2022-04-01)
      Article
      Accés obert
      Harvesting energy from ubiquitous moisture is attracting growing interest for directly powering electronic devices. However, it is still challenging to fabricate high-performing moisture-electric generators (MEGs) with ...

    • Bridging NiCo layered double hydroxides and Ni3S2 for bifunctional electrocatalysts: the role of vertical graphene 

      Xiao, Zhang; Fan, Jiajun; Lu, Xunyu; Han, Zhaojun; Cazorla Silva, Claudio; Hu, Long; Wu, Tom; Chu, Dewei (2021-07-01)
      Article
      Accés obert
      In this work, we report a bifunctional electrocatalyst with nickel sulphide (Ni3S2) as the template, vertical graphene (VG) as the bridging material, and nickel–cobalt layered double hydroxides (NiCo LDHs) nanosheets as ...

    • Caracterització optoelectrònica del grafè sobre diferents substrats a altes freqüències 

      Gabriel Cortés, Daniel (Universitat Politècnica de Catalunya, 2014-09-09)
      Projecte/Treball Final de Carrera
      Accés obert
      [ANGLÈS] This project presents a study for both optic and electronic properties of graphene and possible variations of different physical magnitudes that are produced in a material when a single layer of graphene is deposited ...

    • Characterization and implementation of resistance-to-time-to-digital readout system for novel photoresistor based on graphene 

      García Gutiérrez, Mario Marcos (Universitat Politècnica de Catalunya, 2017-09-07)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat

    • Characterization of the methane–graphene hydrophobic interaction in aqueous solution from ab initio simulations 

      Calero Borrallo, Carles; Martí Rabassa, Jordi; Guàrdia Manuel, Elvira; Masia, Marco (2013-09-17)
      Article
      Accés restringit per política de l'editorial
      In this article, the interaction between a methane molecule and a graphene plane in liquid water has been characterized employing DFT-based free energy Molecular Dynamics calculations. This system represents a good model ...

    • Chondroinductive alginate-based hydrogels having graphene oxide for 3D printed scaffold fabrication 

      Olate Moya, Felipe; Mateos Timoneda, Miguel Ángel; Engel López, Elisabeth; Arens, Lukas; Wilhelm, Manfred; Palza, Humberto (2020-01-07)
      Article
      Accés obert
      Scaffolds based on bioconjugated hydrogels are attractive for tissue engineering because they can partly mimic human tissue characteristics. For example, they can further increase their bioactivity with cells. However, ...

    • Coexistence of wrinkles and blisters in supported graphene 

      Zang, Kuan; Arroyo Balaguer, Marino (Elsevier, 2017-07-01)
      Article
      Accés obert
      Blisters induced by gas trapped in the interstitial space between supported graphene and the substrate are commonly observed. These blisters are often quasi-spherical with a circular rim, but polygonal blisters are also ...

    • Colloidal Quantum Dot Tandem Solar Cells Using CVD Graphene as An Atomically Thin Intermediate Recombination Layer 

      Bi, Yu; Pradhan, Santanu; Akgul, Mehmet Zafer; Gupta, Shuchi; Stavrinadis, Alexandros; Wang, Jianjun; Konstantatos, Gerasimos (ACS, 2018-06-28)
      Article
      Accés obert
      Two-terminal tandem cell architectures are believed to be an effective way to further improve the power conversion efficiency in solution processed photovoltaics. To design an efficient tandem solar cell, two key issues ...

    • Competing Ultrafast Energy Relaxation Pathways in Photoexcited Graphene 

      Jensen, S. A.; Mics, Z.; Ivanov, I.; Varol, H. S.; Turchinovich, D.; Bonn, M.; Tielrooij, K. J. (ACS Publications, 2014-09-23)
      Article
      Accés obert

    • Construction of free-standing films using graphene for biomedical applications 

      Biurrun Zuasti, Maialen (Universitat Politècnica de Catalunya / Zhejiang University, 2011)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      The LbL Electrostatic Self Assembly could be used to produce nano or micrometric thickness multilayer films with several different functionalities and applications. It is based on the alternative dipping of a substrate in ...